diff mbox series

vfio: document multiprocess limitation for container API

Message ID 2ecb586fd507d84b0b9913e5d3c358871297b2a6.1551275659.git.anatoly.burakov@intel.com (mailing list archive)
State Accepted, archived
Delegated to: Thomas Monjalon
Headers
Series vfio: document multiprocess limitation for container API |

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation success Compilation OK
ci/intel-Performance-Testing success Performance Testing PASS
ci/mellanox-Performance-Testing success Performance Testing PASS

Commit Message

Anatoly Burakov Feb. 27, 2019, 3:41 p.m. UTC 
  Currently, there is no support for sharing custom VFIO containers
between multiple processes, but it is not documented.

Document this limitation.

Cc: stable@dpdk.org

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
---
 lib/librte_eal/common/include/rte_vfio.h | 4 ++++
 1 file changed, 4 insertions(+)

Comments

Thomas Monjalon March 28, 2019, 11:07 p.m. UTC | #1 
27/02/2019 16:41, Anatoly Burakov:
> Currently, there is no support for sharing custom VFIO containers
> between multiple processes, but it is not documented.
> 
> Document this limitation.
> 
> Cc: stable@dpdk.org
> 
> Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>

Applied, thanks
diff mbox series

Patch

diff --git a/lib/librte_eal/common/include/rte_vfio.h b/lib/librte_eal/common/include/rte_vfio.h
index cae96fab9..4b3a91e91 100644
--- a/lib/librte_eal/common/include/rte_vfio.h
+++ b/lib/librte_eal/common/include/rte_vfio.h
@@ -291,6 +291,10 @@  rte_vfio_get_group_fd(int iommu_group_num);
  *       containers by default, user needs to manage DMA mappings for
  *       any container created by this API.
  *
+ * @note When creating containers using this API, the container will only be
+ *       available in the process that has created it. Sharing containers and
+ *       devices between multiple processes is not supported.
+ *
  * @return
  *   the container fd if successful
  *   <0 if failed